Axys exhaust valve cleaning.
Not sure if you want this here. Not sure you even want to hear this but I'll offer up my experience. Your milage may vary.
Being careful not to move the adjustment of the cable when removing and replacing the cover for the exhaust valve assembly, I pulled the exhaust valves took them off the assembly one at a time. Cleaned them and replaced them making sure they moved freely in the exhaust valve slots.
Rode the sled pretty hard yesterday and it run great no codes no problems, sled run great. Thought I would throw this out there. Like I said though "your mileage may vary."
Mountainhorse please post this where you think it might need to be. Thanks.